Patent US3354893A successfully refreshed from Google Patents.
US3354893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Walker
Assignee: Individual
•
Filing: 1966-10-12
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Granted: 1967-11-28
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Expires: 1986-10-12
Abstract
No abstract record available.
Inventors
- 👤 Schmerl Egon Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:06
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/04; A61H2003/046; A61H2201/00; A61H2201/16; A61H2201/1602; A61H2201/1628; A61H2201/1633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A MOBILE WALKER COMPRISING A PAIR OF LATERALLY SPACED AND GENERALLY VERTICALLY DISPOSED FRONT LEGS HAVING FIXED GROUND ENGAGING BOTTOM END PORTIONS, A PAIR OF LATERALLY SPACED REAR LEGS, GROUND ENGAGING WHEEL MEANS MOUNTED ON THE BOTTOM END PORTIONS OF SAID REAR LEGS, A BRACE MEMBER EXTENDING TRANSVERSELY OF AND CONNECTING SAID FRONT LEGS AND EXTENDING BETWEEN AND CONNECTING ONE LEG OF EACH PAIR TO THE RESPECTIVE LEG OF THE OTHER PAIR AND DEFINING A GENERALLY U-SHAPED REARWARDLY OPENING FRAME, SAID REAR LEGS MERGING INTO AN UPPER FORWARDLY EXTENDING U-JOINT,
Claim 2
Dependent Claim
90 words
A MOBILE WALKER COMPRISING A PAIR OF LATERALLY SPACED AND GENERALLY VERTICALLY DISPOSED FRONT LEGS HAVING FIXED GROUND ENGAGING BOTTOM END PORTIONS, A PAIR OF LATERALLY SPACED REAR LEGS, GROUND ENGAGING WHEEL MEANS MOUNTED ON THE BOTTOM END PORTIONS OF SAID REAR LEGS, A BRACE MEMBER EXTENDING TRANSVERSELY OF AND CONNECTING SAID FRONT LEGS AND EXTENDING BETWEEN AND CONNECTING ONE LEG OF EACH PAIR TO THE RESPECTIVE LEG OF THE OTHER PAIR AND DEFINING A GENERALLY U-SHAPED REARWARDLY OPENING FRAME, SAID REAR LEGS MERGING INTO AN UPPER FORWARDLY EXTENDING U-JOINT,
References Cited (Backward Citations)
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Cited
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Cited
US1448783A
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US2224246A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |